#include <53func.h>
int main(int argc, char *argv[])
{
    int shmid = shmget(0x1234,4096,IPC_CREAT|0600);
    ERROR_CHECK(shmid,-1,"shmget");
    char *p = (char *)shmat(shmid,NULL,0);
    //p[0] = 'H';
    //p[1] = 'e';
    // ...
    strcpy(p,"Hello");
    shmdt(p);
    return 0;
}

